CVE-2018-20657

libiberty: Memory leak in demangle_template function resulting in a denial of service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, has a memory leak via a crafted string, leading to a denial of service (memory consumption), as demonstrated by cxxfilt, a related issue to CVE-2018-12698.

La función demangle_template en cplus-dem.c en GNU libiberty, como se distribuyó en la versión 2.31.1, tiene una fuga de memoria mediante una cadena manipulada, provocando una denegación de servicio (consumo de memoria), tal y como queda demostrado con cxxfilt. Este problema está relacionado con CVE-2018-12698.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include code execution, cross site scripting, and denial of service vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-02 CVE Reserved
2019-01-02 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-772: Missing Release of Resource after Effective Lifetime

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/106444	Third Party Advisory
https://support.f5.com/csp/article/K62602089	Third Party Advisory

URL	Date	SRC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:3352	2019-11-06
https://access.redhat.com/security/cve/CVE-2018-20657	2019-11-05
https://bugzilla.redhat.com/show_bug.cgi?id=1664708	2019-11-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Binutils Search vendor "Gnu" for product "Binutils"				2.31.1 Search vendor "Gnu" for product "Binutils" and version "2.31.1"		-		Affected
F5 Search vendor "F5"		Traffix Signaling Delivery Controller Search vendor "F5" for product "Traffix Signaling Delivery Controller"				>= 5.0.0 <= 5.1.0 Search vendor "F5" for product "Traffix Signaling Delivery Controller" and version " >= 5.0.0 <= 5.1.0"		-		Affected
F5 Search vendor "F5"		Traffix Signaling Delivery Controller Search vendor "F5" for product "Traffix Signaling Delivery Controller"				4.4.0 Search vendor "F5" for product "Traffix Signaling Delivery Controller" and version "4.4.0"		-		Affected